区分colours拼写错误与合法扩展，防止主色被悄悄丢掉

{
  "inputRows": [
    {
      "key": "colours",
      "value": {
        "primary": "#184A45"
      }
    },
    {
      "key": "x-brand-note",
      "value": "仅用于预约产品"
    },
    {
      "key": "typography",
      "value": {
        "body-md": {
          "fontFamily": "Arial",
          "fontSize": "16px"
        }
      }
    }
  ],
  "referenceRows": [
    {
      "key": "colors",
      "expectation": "primary parsed"
    },
    {
      "key": "colours",
      "expectation": "typo warning investigated"
    },
    {
      "key": "x-brand-note",
      "expectation": "prose extension preserved"
    }
  ],
  "invalidRows": [
    {
      "fix": "delete all unknown content",
      "error": "loses legitimate brand context"
    },
    {
      "fix": "leave colours unchanged",
      "error": "intended palette still outside schema"
    }
  ],
  "notes": [
    "作者自制可编辑输入与验收参考，非官方CLI或云端返回。",
    "完整合法基础稿采用官方frontmatter schema；仅按本课故意更改对应字段。"
  ],
  "designMdTemplate": "---\nversion: alpha\nname: Field Kit\ncolors:\n  primary: \"#184A45\"\n  surface: \"#F7F4EC\"\ntypography:\n  body-md:\n    fontFamily: Arial\n    fontSize: 16px\n    fontWeight: 400\n    lineHeight: 1.6\nrounded:\n  sm: 8px\nspacing:\n  sm: 8px\ncomponents:\n  button-primary:\n    backgroundColor: \"{colors.primary}\"\n    textColor: \"#FFFFFF\"\n    typography: \"{typography.body-md}\"\n    rounded: \"{rounded.sm}\"\n    padding: \"{spacing.sm}\"\n---\n## Overview\nField Kit的预约界面。\n## Colors\n主色用于主要操作。\n## Typography\n正文使用body-md。\n## Layout\n使用8px间距。\n## Shapes\n使用8px圆角。\n## Components\n主要按钮统一消费语义引用。\n",
  "officialSchemaUrl": "https://github.com/google-labs-code/design.md/blob/main/docs/spec.md",
  "files": {
    "input.json": "[\n  {\n    \"key\": \"colours\",\n    \"value\": {\n      \"primary\": \"#184A45\"\n    }\n  },\n  {\n    \"key\": \"x-brand-note\",\n    \"value\": \"仅用于预约产品\"\n  },\n  {\n    \"key\": \"typography\",\n    \"value\": {\n      \"body-md\": {\n        \"fontFamily\": \"Arial\",\n        \"fontSize\": \"16px\"\n      }\n    }\n  }\n]\n",
    "reference.json": "{\n  \"identity\": \"作者验收参考，非模型返回\",\n  \"rows\": [\n    {\n      \"key\": \"colors\",\n      \"expectation\": \"primary parsed\"\n    },\n    {\n      \"key\": \"colours\",\n      \"expectation\": \"typo warning investigated\"\n    },\n    {\n      \"key\": \"x-brand-note\",\n      \"expectation\": \"prose extension preserved\"\n    }\n  ]\n}\n",
    "invalid.json": "{\n  \"identity\": \"作者构造负例，非实际错误回包\",\n  \"rows\": [\n    {\n      \"fix\": \"delete all unknown content\",\n      \"error\": \"loses legitimate brand context\"\n    },\n    {\n      \"fix\": \"leave colours unchanged\",\n      \"error\": \"intended palette still outside schema\"\n    }\n  ]\n}\n",
    "case.md": "# DESIGN.md自定义字段：区分colours拼写错误与合法扩展，防止主色被悄悄丢掉\n\nDESIGN.md自定义字段不是遇到未知项就全部删掉。本课保留正常品牌备注，同时把像颜色token却放错顶层位置的数据找回来，避免AI消费时改用猜测颜色。\n\n## 建立误拼和扩展两个副本\n\n在typo版把colors写成colours，在extension版保留colors并添加x-brand-note。\n\n两份文件的品牌说明与组件内容保持相同，便于区分触发原因。\n\n## 逐份运行lint\n\n分别保存原始finding，查看unknown-key或token-like-ignored是否命中。\n\n不预先把所有未知键都当error，官方对扩展与像token的误放有不同处理。\n\n## 回查有效设计状态\n\nCLI的JSON报告主要含findings与summary；根据unknown-key、token-like-ignored和broken-ref定位误拼，再用修复后的真实export确认primary进入消费产物。\n\n若界面恰好用了相近颜色，也不能证明被忽略的字段已正确读取。\n\n## 修正误拼的顶层键\n\n只把colours改回colors，保留原值与组件引用。\n\n不要顺手删除x-brand-note，除非它确实不再需要。\n\n## 导出验证真实消费\n\n对修复文件导出CSS，查primary的实际输出值。\n\n若报告仍提示缺主色，检查是不是另一份文件被命令使用。\n\n## 保留合法扩展文本\n\n把x-brand-note内容写入交付说明，确认规范工具没有强迫它变成颜色。\n\n扩展能保留不代表任何下游生成器都会执行其中的自然语言要求。\n\n## 交付两类处理依据\n\n整理误拼修复前后、合法扩展和导出结果三份证据。\n\n说明每个字段属于规范token还是项目自定义上下文，避免团队后续误删。\n\n身份：输入与参考为作者材料；localCli有实测记录时仅证明对应CLI运行，目标云端与模型推理未执行。\n",
    "DESIGN-wrong.md": "---\nversion: alpha\nname: Field Kit\ncolours:\n  primary: \"#184A45\"\n  surface: \"#F7F4EC\"\ntypography:\n  body-md:\n    fontFamily: Arial\n    fontSize: 16px\n    fontWeight: 400\n    lineHeight: 1.6\nrounded:\n  sm: 8px\nspacing:\n  sm: 8px\ncomponents:\n  button-primary:\n    backgroundColor: \"{colors.primary}\"\n    textColor: \"#FFFFFF\"\n    typography: \"{typography.body-md}\"\n    rounded: \"{rounded.sm}\"\n    padding: \"{spacing.sm}\"\n---\n## Overview\nField Kit的预约界面。\n## Colors\n主色用于主要操作。\n## Typography\n正文使用body-md。\n## Layout\n使用8px间距。\n## Shapes\n使用8px圆角。\n## Components\n主要按钮统一消费语义引用。\n\n## Brand Note\n本练习仅用于预约产品。\n",
    "DESIGN-fixed.md": "---\nversion: alpha\nname: Field Kit\ncolors:\n  primary: \"#184A45\"\n  surface: \"#F7F4EC\"\ntypography:\n  body-md:\n    fontFamily: Arial\n    fontSize: 16px\n    fontWeight: 400\n    lineHeight: 1.6\nrounded:\n  sm: 8px\nspacing:\n  sm: 8px\ncomponents:\n  button-primary:\n    backgroundColor: \"{colors.primary}\"\n    textColor: \"#FFFFFF\"\n    typography: \"{typography.body-md}\"\n    rounded: \"{rounded.sm}\"\n    padding: \"{spacing.sm}\"\n---\n## Overview\nField Kit的预约界面。\n## Colors\n主色用于主要操作。\n## Typography\n正文使用body-md。\n## Layout\n使用8px间距。\n## Shapes\n使用8px圆角。\n## Components\n主要按钮统一消费语义引用。\n\n## Brand Note\n本练习仅用于预约产品。\n",
    "DESIGN-extension.md": "---\nversion: alpha\nname: Field Kit\ncolors:\n  primary: \"#184A45\"\n  surface: \"#F7F4EC\"\ntypography:\n  body-md:\n    fontFamily: Arial\n    fontSize: 16px\n    fontWeight: 400\n    lineHeight: 1.6\nrounded:\n  sm: 8px\nspacing:\n  sm: 8px\ncomponents:\n  button-primary:\n    backgroundColor: \"{colors.primary}\"\n    textColor: \"#FFFFFF\"\n    typography: \"{typography.body-md}\"\n    rounded: \"{rounded.sm}\"\n    padding: \"{spacing.sm}\"\nx-brand-note: only-for-booking\n---\n## Overview\nField Kit的预约界面。\n## Colors\n主色用于主要操作。\n## Typography\n正文使用body-md。\n## Layout\n使用8px间距。\n## Shapes\n使用8px圆角。\n## Components\n主要按钮统一消费语义引用。\n",
    "DESIGN-typo.md": "---\nversion: alpha\nname: Field Kit\ncolours:\n  primary: \"#184A45\"\n  surface: \"#F7F4EC\"\ntypography:\n  body-md:\n    fontFamily: Arial\n    fontSize: 16px\n    fontWeight: 400\n    lineHeight: 1.6\nrounded:\n  sm: 8px\nspacing:\n  sm: 8px\ncomponents:\n  button-primary:\n    backgroundColor: \"{colors.primary}\"\n    textColor: \"#FFFFFF\"\n    typography: \"{typography.body-md}\"\n    rounded: \"{rounded.sm}\"\n    padding: \"{spacing.sm}\"\n---\n## Overview\nField Kit的预约界面。\n## Colors\n主色用于主要操作。\n## Typography\n正文使用body-md。\n## Layout\n使用8px间距。\n## Shapes\n使用8px圆角。\n## Components\n主要按钮统一消费语义引用。\n\n## Brand Note\n本练习仅用于预约产品。\n",
    "typo-colours.stdout.txt": "{\n  \"findings\": [\n    {\n      \"severity\": \"error\",\n      \"path\": \"components.button-primary\",\n      \"message\": \"Reference {colors.primary} does not resolve to any defined token.\",\n      \"rule\": \"broken-ref\"\n    },\n    {\n      \"severity\": \"info\",\n      \"message\": \"Design system defines 1 typography scale, 1 rounding level, 1 spacing token, 1 component.\",\n      \"rule\": \"token-summary\"\n    },\n    {\n      \"severity\": \"warning\",\n      \"path\": \"colours\",\n      \"message\": \"Unknown key \\\"colours\\\" — did you mean \\\"colors\\\"?\",\n      \"rule\": \"unknown-key\"\n    },\n    {\n      \"severity\": \"warning\",\n      \"path\": \"colours\",\n      \"message\": \"\\\"colours\\\" looks like a design-token map but is not a recognized schema key (colors, typography, spacing, rounded, components). It will be silently ignored by export commands. Rename it to a supported key or move its values under a recognized section.\",\n      \"rule\": \"token-like-ignored\"\n    }\n  ],\n  \"summary\": {\n    \"errors\": 1,\n    \"warnings\": 2,\n    \"infos\": 1\n  }\n}\n",
    "typo-colours.stderr.txt": "",
    "custom-extension.stdout.txt": "{\n  \"findings\": [\n    {\n      \"severity\": \"info\",\n      \"message\": \"Design system defines 2 colors, 1 typography scale, 1 rounding level, 1 spacing token, 1 component.\",\n      \"rule\": \"token-summary\"\n    }\n  ],\n  \"summary\": {\n    \"errors\": 0,\n    \"warnings\": 0,\n    \"infos\": 1\n  }\n}\n",
    "custom-extension.stderr.txt": "",
    "local-cli-receipt.json": "{\n  \"status\": \"executed\",\n  \"package\": \"@google/design.md\",\n  \"version\": \"0.4.0\",\n  \"cases\": [\n    {\n      \"case\": \"typo-colours\",\n      \"exitCode\": 1,\n      \"stdoutSha256\": \"b8f611c02272dc1ae5398978be5e897e080de190ede8a63498e368c8bfe3a192\"\n    },\n    {\n      \"case\": \"custom-extension\",\n      \"exitCode\": 0,\n      \"stdoutSha256\": \"507468c97879fb6b9353db67609ac5102667c2cbc6d57bdda0f1614c240967fb\"\n    }\n  ]\n}\n"
  }
}